diff options
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/ECMFindModuleHelpers.cmake | 297 | ||||
| -rw-r--r-- | cmake/ECMFindModuleHelpersStub.cmake | 1 | ||||
| -rw-r--r-- | cmake/FindEGL.cmake | 172 |
3 files changed, 470 insertions, 0 deletions
diff --git a/cmake/ECMFindModuleHelpers.cmake b/cmake/ECMFindModuleHelpers.cmake new file mode 100644 index 0000000..f2e32f9 --- /dev/null +++ b/cmake/ECMFindModuleHelpers.cmake @@ -0,0 +1,297 @@ +#.rst: +# ECMFindModuleHelpers +# -------------------- +# +# Helper macros for find modules: ecm_find_package_version_check(), +# ecm_find_package_parse_components() and +# ecm_find_package_handle_library_components(). +# +# :: +# +# ecm_find_package_version_check(<name>) +# +# Prints warnings if the CMake version or the project's required CMake version +# is older than that required by extra-cmake-modules. +# +# :: +# +# ecm_find_package_parse_components(<name> +# RESULT_VAR <variable> +# KNOWN_COMPONENTS <component1> [<component2> [...]] +# [SKIP_DEPENDENCY_HANDLING]) +# +# This macro will populate <variable> with a list of components found in +# <name>_FIND_COMPONENTS, after checking that all those components are in the +# list of KNOWN_COMPONENTS; if there are any unknown components, it will print +# an error or warning (depending on the value of <name>_FIND_REQUIRED) and call +# return(). +# +# The order of components in <variable> is guaranteed to match the order they +# are listed in the KNOWN_COMPONENTS argument. +# +# If SKIP_DEPENDENCY_HANDLING is not set, for each component the variable +# <name>_<component>_component_deps will be checked for dependent components. +# If <component> is listed in <name>_FIND_COMPONENTS, then all its (transitive) +# dependencies will also be added to <variable>. +# +# :: +# +# ecm_find_package_handle_library_components(<name> +# COMPONENTS <component> [<component> [...]] +# [SKIP_DEPENDENCY_HANDLING]) +# [SKIP_PKG_CONFIG]) +# +# Creates an imported library target for each component. The operation of this +# macro depends on the presence of a number of CMake variables. +# +# The <name>_<component>_lib variable should contain the name of this library, +# and <name>_<component>_header variable should contain the name of a header +# file associated with it (whatever relative path is normally passed to +# '#include'). <name>_<component>_header_subdir variable can be used to specify +# which subdirectory of the include path the headers will be found in. +# ecm_find_package_components() will then search for the library +# and include directory (creating appropriate cache variables) and create an +# imported library target named <name>::<component>. +# +# Additional variables can be used to provide additional information: +# +# If SKIP_PKG_CONFIG, the <name>_<component>_pkg_config variable is set, and +# pkg-config is found, the pkg-config module given by +# <name>_<component>_pkg_config will be searched for and used to help locate the +# library and header file. It will also be used to set +# <name>_<component>_VERSION. +# +# Note that if version information is found via pkg-config, +# <name>_<component>_FIND_VERSION can be set to require a particular version +# for each component. +# +# If SKIP_DEPENDENCY_HANDLING is not set, the INTERFACE_LINK_LIBRARIES property +# of the imported target for <component> will be set to contain the imported +# targets for the components listed in <name>_<component>_component_deps. +# <component>_FOUND will also be set to false if any of the compoments in +# <name>_<component>_component_deps are not found. This requires the components +# in <name>_<component>_component_deps to be listed before <component> in the +# COMPONENTS argument. +# +# The following variables will be set: +# +# ``<name>_TARGETS`` +# the imported targets +# ``<name>_LIBRARIES`` +# the found libraries +# ``<name>_INCLUDE_DIRS`` +# the combined required include directories for the components +# ``<name>_DEFINITIONS`` +# the "other" CFLAGS provided by pkg-config, if any +# ``<name>_VERSION`` +# the value of ``<name>_<component>_VERSION`` for the first component that +# has this variable set (note that components are searched for in the order +# they are passed to the macro), although if it is already set, it will not +# be altered +# +# Note that these variables are never cleared, so if +# ecm_find_package_handle_library_components() is called multiple times with +# different components (typically because of multiple find_package() calls) then +# ``<name>_TARGETS``, for example, will contain all the targets found in any +# call (although no duplicates). +# +# Since pre-1.0.0. + +#============================================================================= +# Copyright 2014 Alex Merry <alex.merry@kde.org> +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +include(CMakeParseArguments) + +macro(ecm_find_package_version_check module_name) + if(CMAKE_VERSION VERSION_LESS 2.8.12) + message(FATAL_ERROR "CMake 2.8.12 is required by Find${module_name}.cmake") + endif() + if(CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 2.8.12) + message(AUTHOR_WARNING "Your project should require at least CMake 2.8.12 to use Find${module_name}.cmake") + endif() +endmacro() + +macro(ecm_find_package_parse_components module_name) + set(ecm_fppc_options SKIP_DEPENDENCY_HANDLING) + set(ecm_fppc_oneValueArgs RESULT_VAR) + set(ecm_fppc_multiValueArgs KNOWN_COMPONENTS DEFAULT_COMPONENTS) + cmake_parse_arguments(ECM_FPPC "${ecm_fppc_options}" "${ecm_fppc_oneValueArgs}" "${ecm_fppc_multiValueArgs}" ${ARGN}) + + if(ECM_FPPC_UNPARSED_ARGUMENTS) + message(FATAL_ERROR "Unexpected arguments to ecm_find_package_parse_components: ${ECM_FPPC_UNPARSED_ARGUMENTS}") + endif() + if(NOT ECM_FPPC_RESULT_VAR) + message(FATAL_ERROR "Missing RESULT_VAR argument to ecm_find_package_parse_components") + endif() + if(NOT ECM_FPPC_KNOWN_COMPONENTS) + message(FATAL_ERROR "Missing KNOWN_COMPONENTS argument to ecm_find_package_parse_components") + endif() + if(NOT ECM_FPPC_DEFAULT_COMPONENTS) + set(ECM_FPPC_DEFAULT_COMPONENTS ${ECM_FPPC_KNOWN_COMPONENTS}) + endif() + + if(${module_name}_FIND_COMPONENTS) + set(ecm_fppc_requestedComps ${${module_name}_FIND_COMPONENTS}) + + if(NOT ECM_FPPC_SKIP_DEPENDENCY_HANDLING) + # Make sure deps are included + foreach(ecm_fppc_comp ${ecm_fppc_requestedComps}) + foreach(ecm_fppc_dep_comp ${${module_name}_${ecm_fppc_comp}_component_deps}) + list(FIND ecm_fppc_requestedComps "${ecm_fppc_dep_comp}" ecm_fppc_index) + if("${ecm_fppc_index}" STREQUAL "-1") + if(NOT ${module_name}_FIND_QUIETLY) + message(STATUS "${module_name}: ${ecm_fppc_comp} requires ${${module_name}_${ecm_fppc_comp}_component_deps}") + endif() + list(APPEND ecm_fppc_requestedComps "${ecm_fppc_dep_comp}") + endif() + endforeach() + endforeach() + else() + message(STATUS "Skipping dependency handling for ${module_name}") + endif() + list(REMOVE_DUPLICATES ecm_fppc_requestedComps) + + # This makes sure components are listed in the same order as + # KNOWN_COMPONENTS (potentially important for inter-dependencies) + set(${ECM_FPPC_RESULT_VAR}) + foreach(ecm_fppc_comp ${ECM_FPPC_KNOWN_COMPONENTS}) + list(FIND ecm_fppc_requestedComps "${ecm_fppc_comp}" ecm_fppc_index) + if(NOT "${ecm_fppc_index}" STREQUAL "-1") + list(APPEND ${ECM_FPPC_RESULT_VAR} "${ecm_fppc_comp}") + list(REMOVE_AT ecm_fppc_requestedComps ${ecm_fppc_index}) + endif() + endforeach() + # if there are any left, they are unknown components + if(ecm_fppc_requestedComps) + set(ecm_fppc_msgType STATUS) + if(${module_name}_FIND_REQUIRED) + set(ecm_fppc_msgType FATAL_ERROR) + endif() + if(NOT ${module_name}_FIND_QUIETLY) + message(${ecm_fppc_msgType} "${module_name}: requested unknown components ${ecm_fppc_requestedComps}") + endif() + return() + endif() + else() + set(${ECM_FPPC_RESULT_VAR} ${ECM_FPPC_DEFAULT_COMPONENTS}) + endif() +endmacro() + +macro(ecm_find_package_handle_library_components module_name) + set(ecm_fpwc_options SKIP_PKG_CONFIG SKIP_DEPENDENCY_HANDLING) + set(ecm_fpwc_oneValueArgs) + set(ecm_fpwc_multiValueArgs COMPONENTS) + cmake_parse_arguments(ECM_FPWC "${ecm_fpwc_options}" "${ecm_fpwc_oneValueArgs}" "${ecm_fpwc_multiValueArgs}" ${ARGN}) + + if(ECM_FPWC_UNPARSED_ARGUMENTS) + message(FATAL_ERROR "Unexpected arguments to ecm_find_package_handle_components: ${ECM_FPWC_UNPARSED_ARGUMENTS}") + endif() + if(NOT ECM_FPWC_COMPONENTS) + message(FATAL_ERROR "Missing COMPONENTS argument to ecm_find_package_handle_components") + endif() + + include(FindPackageHandleStandardArgs) + find_package(PkgConfig) + foreach(ecm_fpwc_comp ${ECM_FPWC_COMPONENTS}) + set(ecm_fpwc_dep_vars) + set(ecm_fpwc_dep_targets) + if(NOT SKIP_DEPENDENCY_HANDLING) + foreach(ecm_fpwc_dep ${${module_name}_${ecm_fpwc_comp}_component_deps}) + list(APPEND ecm_fpwc_dep_vars "${module_name}_${ecm_fpwc_dep}_FOUND") + list(APPEND ecm_fpwc_dep_targets "${module_name}::${ecm_fpwc_dep}") + endforeach() + endif() + + if(NOT ECM_FPWC_SKIP_PKG_CONFIG AND ${module_name}_${ecm_fpwc_comp}_pkg_config) + pkg_check_modules(PKG_${module_name}_${ecm_fpwc_comp} QUIET + ${${module_name}_${ecm_fpwc_comp}_pkg_config}) + endif() + + find_path(${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR + NAMES ${${module_name}_${ecm_fpwc_comp}_header} + HINTS ${PKG_${module_name}_${ecm_fpwc_comp}_INCLUDE_DIRS} + PATH_SUFFIXES ${${module_name}_${ecm_fpwc_comp}_header_subdir} + ) + find_library(${module_name}_${ecm_fpwc_comp}_LIBRARY + NAMES ${${module_name}_${ecm_fpwc_comp}_lib} + HINTS ${PKG_${module_name}_${ecm_fpwc_comp}_LIBRARY_DIRS} + ) + + set(${module_name}_${ecm_fpwc_comp}_VERSION "${PKG_${module_name}_${ecm_fpwc_comp}_VERSION}") + if(NOT ${module_name}_VERSION) + set(${module_name}_VERSION ${${module_name}_${ecm_fpwc_comp}_VERSION}) + endif() + + find_package_handle_standard_args(${module_name}_${ecm_fpwc_comp} + FOUND_VAR + ${module_name}_${ecm_fpwc_comp}_FOUND + REQUIRED_VARS + ${module_name}_${ecm_fpwc_comp}_LIBRARY + ${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR + ${ecm_fpwc_dep_vars} + VERSION_VAR + ${module_name}_${ecm_fpwc_comp}_VERSION + ) + + mark_as_advanced( + ${module_name}_${ecm_fpwc_comp}_LIBRARY + ${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR + ) + + if(${module_name}_${ecm_fpwc_comp}_FOUND) + list(APPEND ${module_name}_LIBRARIES + "${${module_name}_${ecm_fpwc_comp}_LIBRARY}") + list(APPEND ${module_name}_INCLUDE_DIRS + "${${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR}") + set(${module_name}_DEFINITIONS + ${${module_name}_DEFINITIONS} + ${PKG_${module_name}_${ecm_fpwc_comp}_DEFINITIONS}) + if(NOT TARGET ${module_name}::${ecm_fpwc_comp}) + add_library(${module_name}::${ecm_fpwc_comp} UNKNOWN IMPORTED) + set_target_properties(${module_name}::${ecm_fpwc_comp} PROPERTIES + IMPORTED_LOCATION "${${module_name}_${ecm_fpwc_comp}_LIBRARY}" + INTERFACE_COMPILE_OPTIONS "${PKG_${module_name}_${ecm_fpwc_comp}_DEFINITIONS}" + INTERFACE_INCLUDE_DIRECTORIES "${${module_name}_${ecm_fpwc_comp}_INCLUDE_DIR}" + INTERFACE_LINK_LIBRARIES "${ecm_fpwc_dep_targets}" + ) + endif() + list(APPEND ${module_name}_TARGETS + "${module_name}::${ecm_fpwc_comp}") + endif() + endforeach() + if(${module_name}_LIBRARIES) + list(REMOVE_DUPLICATES ${module_name}_LIBRARIES) + endif() + if(${module_name}_INCLUDE_DIRS) + list(REMOVE_DUPLICATES ${module_name}_INCLUDE_DIRS) + endif() + if(${module_name}_DEFINITIONS) + list(REMOVE_DUPLICATES ${module_name}_DEFINITIONS) + endif() + if(${module_name}_TARGETS) + list(REMOVE_DUPLICATES ${module_name}_TARGETS) + endif() +endmacro() diff --git a/cmake/ECMFindModuleHelpersStub.cmake b/cmake/ECMFindModuleHelpersStub.cmake new file mode 100644 index 0000000..acc8c80 --- /dev/null +++ b/cmake/ECMFindModuleHelpersStub.cmake @@ -0,0 +1 @@ +include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpers.cmake) diff --git a/cmake/FindEGL.cmake b/cmake/FindEGL.cmake new file mode 100644 index 0000000..48e5172 --- /dev/null +++ b/cmake/FindEGL.cmake @@ -0,0 +1,172 @@ +#.rst: +# FindEGL +# ------- +# +# Try to find EGL. +# +# This will define the following variables: +# +# ``EGL_FOUND`` +# True if (the requested version of) EGL is available +# ``EGL_VERSION`` +# The version of EGL; note that this is the API version defined in the +# headers, rather than the version of the implementation (eg: Mesa) +# ``EGL_LIBRARIES`` +# This can be passed to target_link_libraries() instead of the ``EGL::EGL`` +# target +# ``EGL_INCLUDE_DIRS`` +# This should be passed to target_include_directories() if the target is not +# used for linking +# ``EGL_DEFINITIONS`` +# This should be passed to target_compile_options() if the target is not +# used for linking +# +# If ``EGL_FOUND`` is TRUE, it will also define the following imported target: +# +# ``EGL::EGL`` +# The EGL library +# +# In general we recommend using the imported target, as it is easier to use. +# Bear in mind, however, that if the target is in the link interface of an +# exported library, it must be made available by the package config file. +# +# Since pre-1.0.0. + +#============================================================================= +# Copyright 2014 Alex Merry <alex.merry@kde.org> +# Copyright 2014 Martin Gräßlin <mgraesslin@kde.org> +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +#============================================================================= + +include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpersStub.cmake) +include(CheckCXXSourceCompiles) +include(CMakePushCheckState) + +ecm_find_package_version_check(EGL) + +# Use pkg-config to get the directories and then use these values +# in the FIND_PATH() and FIND_LIBRARY() calls +find_package(PkgConfig) +pkg_check_modules(PKG_EGL QUIET egl) + +set(EGL_DEFINITIONS ${PKG_EGL_CFLAGS_OTHER}) + +find_path(EGL_INCLUDE_DIR + NAMES + EGL/egl.h + HINTS + ${PKG_EGL_INCLUDE_DIRS} +) +find_library(EGL_LIBRARY + NAMES + EGL + HINTS + ${PKG_EGL_LIBRARY_DIRS} +) + +# NB: We do *not* use the version information from pkg-config, as that +# is the implementation version (eg: the Mesa version) +if(EGL_INCLUDE_DIR) + # egl.h has defines of the form EGL_VERSION_x_y for each supported + # version; so the header for EGL 1.1 will define EGL_VERSION_1_0 and + # EGL_VERSION_1_1. Finding the highest supported version involves + # finding all these defines and selecting the highest numbered. + file(READ "${EGL_INCLUDE_DIR}/EGL/egl.h" _EGL_header_contents) + string(REGEX MATCHALL + "[ \t]EGL_VERSION_[0-9_]+" + _EGL_version_lines + "${_EGL_header_contents}" + ) + unset(_EGL_header_contents) + foreach(_EGL_version_line ${_EGL_version_lines}) + string(REGEX REPLACE + "[ \t]EGL_VERSION_([0-9_]+)" + "\\1" + _version_candidate + "${_EGL_version_line}" + ) + string(REPLACE "_" "." _version_candidate "${_version_candidate}") + if(NOT DEFINED EGL_VERSION OR EGL_VERSION VERSION_LESS _version_candidate) + set(EGL_VERSION "${_version_candidate}") + endif() + endforeach() + unset(_EGL_version_lines) +endif() + +cmake_push_check_state(RESET) +list(APPEND CMAKE_REQUIRED_LIBRARIES "${EGL_LIBRARY}") +list(APPEND CMAKE_REQUIRED_INCLUDES "${EGL_INCLUDE_DIR}") + +check_cxx_source_compiles(" +#include <EGL/egl.h> + +int main(int argc, char *argv[]) { + EGLint x = 0; EGLDisplay dpy = 0; EGLContext ctx = 0; + eglDestroyContext(dpy, ctx); +}" HAVE_EGL) + +cmake_pop_check_state() + +set(required_vars EGL_INCLUDE_DIR HAVE_EGL) +if(NOT EMSCRIPTEN) + list(APPEND required_vars EGL_LIBRARY) +endif() + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(EGL + FOUND_VAR + EGL_FOUND + REQUIRED_VARS + ${required_vars} + VERSION_VAR + EGL_VERSION +) + +if(EGL_FOUND AND NOT TARGET EGL::EGL) + if (EMSCRIPTEN) + add_library(EGL::EGL INTERFACE IMPORTED) + # Nothing further to be done, system include paths have headers and linkage is implicit. + else() + add_library(EGL::EGL UNKNOWN IMPORTED) + set_target_properties(EGL::EGL PROPERTIES + IMPORTED_LOCATION "${EGL_LIBRARY}" + INTERFACE_COMPILE_OPTIONS "${EGL_DEFINITIONS}" + INTERFACE_INCLUDE_DIRECTORIES "${EGL_INCLUDE_DIR}" + ) + endif() +endif() + +mark_as_advanced(EGL_LIBRARY EGL_INCLUDE_DIR HAVE_EGL) + +# compatibility variables +set(EGL_LIBRARIES ${EGL_LIBRARY}) +set(EGL_INCLUDE_DIRS ${EGL_INCLUDE_DIR}) +set(EGL_VERSION_STRING ${EGL_VERSION}) + +include(FeatureSummary) +set_package_properties(EGL PROPERTIES + URL "https://www.khronos.org/egl/" + DESCRIPTION "A platform-agnostic mechanism for creating rendering surfaces for use with other graphics libraries, such as OpenGL|ES and OpenVG." +) |